Latest about time
Why some physicists really think there's a 'mirror universe' hiding in space-time
What happens when you turn space-time upside-down?
Where Does the Concept of Time Travel Come From?
When did time travel stories first appear, and what makes them so popular?
Physicists Reverse Time for Tiny Particles Inside a Quantum Computer
The "arrow of time" went backward inside this tiny quantum computer.
Does Light Experience Time? And Other Riddles.
We don't understand the concept of time much at all.
When You Look Up, How Far Back in Time Do You See?
Our senses are stuck in the past. There's a flash of lightning, and then seconds pass until we hear the rumble of distant thunder. We hear the past.
World First: Chinese Physicists Made a Cold Atomic Clock Work in Space
Atomic clocks have traveled to space before. But no one has ever managed to make one this accurate tick up there before.
Stephen Hawking Says He Knows What Happened Before the Big Bang
What was there before there was anything? Stephen Hawking might know the answer.
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